Question

reduction reation define and give example​

Answer 1

Reduction involves a half-reaction in which a chemical species decreases its oxidation number, usually by gaining electrons. The other half of the reaction involves oxidation, in which electrons are lost. Together, reduction and oxidation form redox reactions (reduction-oxidation = redox). Reduction may be considered the opposite process of oxidation.

The H+ ions, with an oxidation number of +1, are reduced to H2, with an oxidation number of 0, in the reaction:

Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)

Another simple example is the reaction between copper oxide and magnesium to yield copper and magnesium oxide:

CuO + Mg → Cu + MgO

Rusting of iron is a process that involves oxidation and reduction. Oxygen is reduced, while iron is oxidized. While it's easy to identify which species are oxidized and reduced using the "oxygen" definition of oxidation and reduction, it's harder to visualize electrons. One way to do this is to rewrite the reaction as an ionic equation. Copper(II) oxide and magnesium oxide are ionic compounds, while the metals are not:

Answer 2

hope this will help you.......